According to a recent global survey, 70% of young

...Millennials (aged 18-24) choose a primary care physician based on recommendations from family and friends, while only 41% of patients over the age of 65 do so.

Source: "The Millennial Patient: New Data Highlights Key Differences Between Millennial and Baby Boomer Healthcare Consumers," Nuance Press Release, August 31, 2015, http://www.nuance.com/company/news-room/press-releases/Differences-Between-Millennial-and-Baby-Boomer-Healthcare-Consumers.docx